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Stimuli-responsive membranes are of interest for a wide variety of applications. To date, the most commonly exploited stimuli for regulating membrane pore size are temperature or pH-value. We target membranes formed from block copolymers featuring a hydrophobic block (matrix) and a hydrophilic segment to cover the pore walls. The main topic of my PhD thesis is to extend the hydrophilic block to incorporate photo-response regarding solubility or charge. Possible photo-responsive monomers are spiropyran-methacrylates which can be polymerized with controlled radical polymerization techniques such as NMP/ATRP or using anionic polymerization.